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2120204223 = 32407357839
BaseRepresentation
bin111111001011111…
…1011111110111111
312110202112112102100
41332113323332333
513320233013343
6550215200143
7103353303264
oct17627737677
95422475370
102120204223
119988888a5
124b2076053
1327a343217
1416182926b
15c62089d3
hex7e5fbfbf

2120204223 has 12 divisors (see below), whose sum is σ = 3063322080. Its totient is φ = 1413098016.

The previous prime is 2120204161. The next prime is 2120204231. The reversal of 2120204223 is 3224020212.

It is not a de Polignac number, because 2120204223 - 213 = 2120196031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120204196 and 2120204205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120203223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7738 + ... + 65576.

It is an arithmetic number, because the mean of its divisors is an integer number (255276840).

Almost surely, 22120204223 is an apocalyptic number.

2120204223 is a deficient number, since it is larger than the sum of its proper divisors (943117857).

2120204223 is a wasteful number, since it uses less digits than its factorization.

2120204223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61918 (or 61915 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2120204223 is about 46045.6753995421. The cubic root of 2120204223 is about 1284.6729065973.

Adding to 2120204223 its reverse (3224020212), we get a palindrome (5344224435).

The spelling of 2120204223 in words is "two billion, one hundred twenty million, two hundred four thousand, two hundred twenty-three".

Divisors: 1 3 9 4073 12219 36657 57839 173517 520551 235578247 706734741 2120204223